Window-counterbalance



E. G. ERICKSON. WINDOW COUNTERBALANCE. APPLICATION FILED AUG. 11. 1919.

Patented Apr. 5, 1921.

2 SHEETS-SHEET I.

INIf'ENTOR. By 2765 20%0/2,

N MM

WITNESSES A TTORNE Y.

E. G..ER|CKSON. WINDOW COUNTERBALANCE. APPLICATION FILED AUG. II. I9I9-1,373,955. Patented Apr. 5, 1921.

2 SHEETSSHEET 2.

(9i R Q WI TNE S SE INVENTOR.

BY Z. GZm'cifsom,

A TTORNE Y.

i iT i E ERIK GEORG nnicnson; on" BAKER, oitneon.

' WINDow-ooUiv'rnnB'ALAnon Application filed August 11, 1919. Serial No.316301.

T 0 all w 7mm it may concern Be it known that I, ERIK SON, a citizen ofthe United EJtates, residing at Baker, in the county of Baker and Stateof Oregon, have invented new and useful Improvements inVVindow-Counterbalances, of which the following is a speclfication.

This invention relates to window construction and hasfor its primaryobject to simplify the construction and arrangement of acounter-balanced window sash. v

Another object of the invention is to provide novel means for connectingthe upper sash with the lower sash to provide for simultaneous movementthereof, so that when the lower sash is raised, the upper sash will becorrespondingly lowered and vice versa.

A further object is the provision of novel means for securing the cordemployed for connecting the sashes, to the sash, the said meanspermitting of a quick and accurate adjustment of the cord so as tocompensate for shrinkage and expansion of the same;

Other objects and advantages of the invention will appear as thefollowing description is read in connection with the accompanyingdrawings.

In the drawings: V

Figure 1 is an elevation of a window with the invention applied thereto.

Fig. 2 is a horizontal sectional view of the same. V

Fig. 8 is a vertical section.

Fig. 1 is an enlarged section through the adjustable connection betweenthe cord and the sash. I

Fig. 5 is a detail perspective of the cord carried member.

Fig. 6 is a similar view of the perforated plate.

Fig. 7 is a view of .a spring wire member for threading cord through thepulleys.

Referring to the-drawings in detail, like characters of reference denotecorrespond ing parts throughout the several views.

In illustrating the invention, there 'is shown a window casing, which isindicated at 10. Mounted for sliding movement within this casing in theusual manner, is an upper sash 11 and a lower sash 12.

Mounted upon the top of the frame 10,

Gnoiic ERICK- tions 21.

near each side thereof, is a sheave, which includes a grooved pulley 13and a bracket or casing 1 1, the latter being secured upon the windowframe by screws orsimilar fastening devices 15. Operating over thepulleys 13, is a sash cord 16, thelatter passing through openings .17 inthe top of the frame 10. One end of each of the cords-16 is permanentlysecured to each side of the upper sash 11 nearthe top thereof, asindicated at 18, while the opposite end is adj ustably secured to theadjacent side of the lower sash, also near the top.

This last mentioned securing means is of novel construction and, permitsof an adjustment so as to properly regulatethe con nection between thesashes, to allow for shrinking and stretching of. the cord. Thisadjusting means comprises a stripof metal. 19, which is transverselycurved and secured to the lower sash within a socket or notch, asindicated at 20. The end of the strip 19 extends above the top of thesash and is provided with spaced openingsor perfora- Olamped upon theend of the cord 16, is a hook member which comprises a' substantiallycylindrical body portion 22 and a projection which is bent to form. ahook 28, the latter being adapted for insertion in any one of theopenings 21 to adjustably connect the end of the cord to the sash.- Bythis means proper adjustment may be eifected at any time, so as tocompensate for shrinkage and expansion of the cord.

In Fig. 7 there is illustrated a spring wire member 24, which isprovided upon one endwith a hook 25, for threading the cord through thepulleys. The hook 25 is inserted in the end of the cord and the springwire'member threaded through the pulley, whereupon its end may begrasped and the cord pulled through.

The invention is susceptible of various changes 'in'its form,proportions and minor details of construction 7 and the rlght 1s hereinreserved to make such changes as properly fall within the scope offltheappended claims. r

Having described the invention, what is claimed is: I I

The combination with a window including a casing and upper and lowersashes slidably mounted therein, a sheave mounted cured to the oppositeend of said cable, with upon the top of the frame near each side areduced extension projecting beyond the thereof, and a cable passingover each of lower end of the sleeve, and terminating to 10 saidsheaves, and having one end permaprovide a hook to bev interchangeablyrenently secured to the upper sash, perfoceived by said perforations.

rated plates secured to and extending above In testimony whereof I affixmy signature.

the upper end of the lower sash, a sleeve se- ERIK GEORG ERICKSO-N,

